Machine for winding pulp tubes.



W. Rv. SBIGLB. "`MKO`H`I`NE-FOR WINDIN G PULP TUBES.

APPLIOATION FILED DBG.29, 1911.

2 SHEETS-SHEET 1.

Patented Sept. 3, 1912.

W. R. SEIGLE.

MACHINE PoR WINDING PULP TUBES.

APPLICATION FILED DBO. 29, 1911.

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50 stiffV metal sometimes 'spring durin -winding operation, so that the density of- UMTED STATES To dll iti/wm it may concern; Be it known that I\V1LLL4M.R. Salons, a citizen of the United States, and resident of'Nashua, in t-lie `count-y of Hillsboro and 5 State of New Hampshire, have invented new and useful Improvements in Machines for 'Winding Pulp Tubes,- ofV which the following is a specification.

Mv invention relates to machines for winding pulp tubes, and consists particularly in devices for equalizing the density of such tubes so that when completed vthe tubeshall be homogeneous throughout its entire length.

Machines of the general character to which my present improvement maybe ap` ed 'are vshown and described in det-ail 1n applications for Letters Patent of .the United States `filed by me and co'pendlng 'herewitjh,` to witfSel-ial Nos. 680,921, and

630,922 tiled June 2, 1911. Those machines are characterized by-the coperative functional relationship of a carrier to convey a thin web -of moist pulp, winding mandrels mounted in a revoluble mandrel frame, so

vthat one mandrel at a time bears upon and /winds the-thin web of pulp spirally in superposed layers upon itself, taking the web from 'the web carrier, and provisionsvfor 3io bringing the weight of the mandrel frame and mandrels to bear on 'the web carrier at the' line of contact between the carrier and the mhndrel which is actively engaged in winding a tube.

- S5 Bv virtue of sundry improvements which 40 under -greater pressure 'than heretofore, so

that the resulting product has high density and is therefore adapted to alarger number of usc's than the pulp tubes of rather loosev consistency produced -oy` machinesearlier employed in this art. -The utilization of heavier pressures has', however, developed urth'erend other ditiieulties and defects in' products, for the reason, that;

the tubular the winding mandrels even though made pf t e the tube along its middle is less than at )the ends. 4This diierence might. not be e "if '\-seriousi matter in mxny situations but when, as is often the case, tubes of this character *are 'impregnated with 4insulatingfmaterial MAGHINE'FOR. WINDING rune umass.l

`as insulating envelope for electricfwires, inf snlatlon tests disclose a4 greater susceptibllltylto penetration in the middle ofthe .below the prescribedresistivity. l In order to conserve the advantages due totube winding under high pressure und also to Acorrectthe' defects above indicated, I 4have invented ,the improvements hereinin the accompanying drawings,- in whiche- 'drel frame taken ,transversely to Fig. 1 and viewed as'from the left ,of that ligure.

Among portions Aof a tube winding in achine of the character designated illustrated carrier of felt or.- similar material .(5,5 the and mounted vonthe shaft H2, theamandrels M journaled in the 'nmndrel hcads,.the.driv ing gear gencrallydesignated byV (i and the detent mechanism generally designated by l) in Fig. 2.-

' The mandrels M are four in number in the mandrel heads in such manner that when a tube has been wound upon a mandrel it 'may be removed from the mandrel frame andfanothe'r substituted. .In Fig. l only the upper and lower Vmamlrels are shown, the middle one on the side toward the observer the rear. side beingobscured from view by the other'parts of the machine shown in the drawing. So far, the chine mentioned are su stantiall'y the same as thosewhich appear in the mac11ines.c le, scribed in my copending applications aforesaid and these reindicated merely to designateA the .general'character of machine to lwhich Iriypresent improvements are applied. Iufaddition to'theforegoing parts, the mandrel frame. is providedwithffour ra- ,hf in the-head H.' Each o t these slots is located adjacent to a4v mandrel M :andserves resser roll -I of w ich four are wn' cor- P such as asphalt, and theii hardened, for usev Figure 1 is Aa front elevation of portions of a' tube. winding machine of thecliaractcr c indicated; and Figi?- is a section on-an en# larged scale through the middle of theman' mandrel frameA comprising heads, ll, Il',

having been removed and the middle one on as a sliding bearin for the't-runnions of ai tubes than .at the ends, the ius'ulatin cilpaclty of the.tube walls sometimes fa vlingbelow toA beldescribed which'are illustrated PATENT -oFF1oE.. p

1. Specication of Letters ltent.. :Patented Sept-3, 1912,

4Amilicatiouled December 29, 111. SieriaI'No. r66l8,4l7 I v i.

so 'V in the drawings, are` the f cud standards, A, A', the sectional A'suction roll lt, thcfwebv '-dially disposed'slots; 71, in-.the head H, and'A responding to the four mandrels.` \`\\\hese .I

the illustration shown and alclnounted in ortions of the inaare inide stiff: alidheav'y,

erably of` iron or steel, and their surfaces should be roughened r -clothed withiwire gauze as indicated in the figures, so, as not t0 couch the pulp off from thelmandrel.- f"

When one of the mandrels M is brought into operative conjunction m'ith; tlieweb carrier C, the presser roll .P automatieally descends and bears upon the-upper limb of the mandrel M and turns bycontactgwith mandrel, not only'byitsjweght correcting any tendency of the mandrelM to spring of-" compressmg 'and 'ompacting them pulp 151.* I

- withe-desired-'thi'ckness of tube `hasbeenbuilt tub'efas it is wound on the mandrel. When up on'the mandreh the :mandreLrame is *rotated a' quarter turn, either; by hander 'preferably automatically,` sov that @he ma. '-drel and cWound ytube is eventually'presented adrel 'frame indicated (E1s-.1); represents 'comprehenslvely a detent mechanism, aapart gd'el frame is"intermi,tteiitly rotated. At-.in-j- ''tervals vvhi'ch Yare .'predetermined f by, the

growth" of the pulp trube the mandrel ri's'e in the bearn gs providedl inf thef stand '51rdSii-AMX", the :'detent -rawn from the notch Neand 'D 'ris abruptly with@A G (F h l tlhe, driving lgearl g1g: 1 tv icl constant yl erates x-ictionally upo'il the'shaft w i i the machine/(the rotation beingright'flmndL l'thisjmandreldfranie shiftingfmechasmis l,

ed' as viewed in Fig. 2) ,"until'thef de ent DQ stopstheA mandrel frame by eng'a gement .witlrthe next-notch N.,

',/Hzdthrdzxks the4 mandrel frame backward ,towardthe rehrbf.,

application, Serial No. 630,922. Inthe arrangement herein shown, those presser rolls which are idle are supported by the slots, h, la', two of which are 1n horizontal position, the upper presser roll resting at'the lower ends of the vertical upper slots 11..1 When in the shifting movement of thc mandrel rame, a mandrel descends to the carrier C, it receives the weight of its presser roll which slides or rolls automatically into positioni. lVhen, however, the mandrel M is to be moved for purposes of removing the described in detail in my said co-pendingpulp tube, its presser roll does not bear upon .it but rests idly in the holding slots h, 72,. The size and Weight of the presser rolls P will obviously be varied tosuit different sizes oipulp tubes and mandrels M and may vary,also with the degree of pressure selectedorytube'windng.. A 'i Ivclaim: V' y -lglna tubewinding machine of the character described, the combination of a rotary ,max1drelframe,. mandrels inbearings on said. frame, and presser rolls mounted in the 'positionfor tube Winding. l. .2. .In atube Winding machine of the chardeter descrbedthe combination of a rotary ',mandrelframe, mandrels ,1in-bearings on k said frame, the vframe provided with ra dially disposed slotl bearings for presser rolls, presser rolls with :trunnions working- 1n said slots, to bear on the mandi-els as they take position for tube, Winding.

Signed by me at Boston, Massachusetts, this twenty third day offDecember 1911.

- j f I", WILLLAMR. SEIGLF..

:Witnesses: v. f f N l 'ODIN ROBERTS,

l, JosErHINE H. RYhN.

frame to. bea1' onthe mandreilsas they vtake 

